Resolving Compiler Ambiguous Reference Error CS0104 with PdfFormatProvider
Environment
| Version | Product | Author |
|---|---|---|
| 2023.3.1106 | RadPdfProcessing | Desislava Yordanova |
Description
When using the PdfFormatProvider in your project, you may encounter one of the following Compiler Error CS0104 messages during the application build:
'PdfFormatProvider' is an ambiguous reference between 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider' and 'Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider'
'PdfFormatProvider' is an ambiguous reference between 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider' and 'Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf.PdfFormatProvider'
Usually, such an error may occur when the following using statements are imported:
using Telerik.Windows.Documents.Fixed.FormatProviders.Pdf;
using Telerik.Windows.Documents.Flow.FormatProviders.Pdf;
using Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf;
PdfFormatProvider provider = PdfFormatProvider();
Solution
Telerik Document Processing Libraries offer PdfFormatProvider which makes it easy to import/export a RadFixedDocument from/to PDF format, preserving the entire document structure and formatting. It is available for:
RadWordsProcessing: The PdfFormatProvider class of RadWordsProcessing is located in the Telerik.Windows.Documents.Flow.FormatProviders.Pdf namespace. RadFlowDocument supports only the export option to PDF format. Importing a PDF document to RadFlowDocument is not supported.
RadSpreadProcessing: The PdfFormatProvider class of RadSpreadProcessing is located in the Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf namespace. The Workbook supports only the export to PDF format. Importing a PDF document to Workbook is not supported.
RadPdfProcessing: The PdfFormatProvider class of RadPdfProcessing is located in the Telerik.Windows.Documents.Fixed.FormatProviders.Pdf namespace.
Explicitly specify the namespace when declaring the PdfFormatProvider object based on your specific requirement:
- If you are working with RadSpreadProcessing, use the following namespace:
Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf.PdfFormatProvider provider = new Telerik.Windows.Documents.Spreadsheet.FormatProviders.Pdf.PdfFormatProvider();
- If you are working with RadWordsProcessing, use the following namespace:
Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider provider = new Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider();
- If you are working with RadPdfProcessing, use the following namespace:
Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider provider = new Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider();
By explicitly specifying the namespace, you ensure that the correct PdfFormatProvider is used and avoid ambiguous reference errors.